A free, object-oriented toolkit for SGML parsing and entity management.

Features summary:

    * Includes nsgmls
    * Provides access to all information about SGML document
    * Supports almost all optional SGML features
    * Sophisticated entity manager
    * Supports multi-byte character sets
    * Object-oriented
    * Written in C++ from scratch
    * Fast
    * Portable
    * Production quality
    * Free
